如何显示请假地点？仅在函数执行完成后，在卸载事件之前提示

import React, { useState, useEffect } from 'react';

const LeaveForm = () => {
  const [leaveLocation, setLeaveLocation] = useState('');

  useEffect(() => {
    return () => {
      // 在组件卸载之前执行的代码
      alert(`请假地点：${leaveLocation}`);
    };
  }, []);

  return (
    <div>
      <input
        type="text"
        value={leaveLocation}
        onChange={(e) => setLeaveLocation(e.target.value)}
      />
    </div>
  );
};

export default LeaveForm;